Post-streptococcal Reactive Arthritis
Also written as: PSRA — Post-streptococcal Reactive Arthritis
Non-suppurative arthritis following group A streptococcal infection, distinct from acute rheumatic fever.
Full Definition
Post-streptococcal reactive arthritis is an inflammatory arthritis that occurs following group A streptococcal pharyngitis or skin infection. Unlike acute rheumatic fever, it typically affects larger joints asymmetrically and does not respond dramatically to anti-inflammatory medications. Patients may have persistently elevated inflammatory markers and anti-streptolysin O titers. The condition can be prolonged and may require disease-modifying antirheumatic drugs. It does not carry the cardiac risks associated with rheumatic fever.
Usage
Usage note: Distinguish carefully from acute rheumatic fever in documentation.
In Context
- "Post-streptococcal reactive arthritis was diagnosed after ruling out acute rheumatic fever." — Rheumatology consultation
- "The asymmetric joint involvement suggested post-streptococcal reactive arthritis rather than rheumatic fever." — Clinical assessment note